diff options
| author |   Matthew Garrett <matthew.garrett@nebula.com> | 2013-03-26 17:25:55 -0400 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2013-04-01 14:10:43 -0600 |
| commit | 121cdf08cc854bda4892d2c755e32ef424772ac2 (patch) | |
| tree | 047bfef7ae567549b2a878ffd24a18c0fcca5140 /drivers/gpu/drm/nouveau/core/subdev/bios/base.c | |
| parent | PCI: Add PCI ROM helper for platform-provided ROM images (diff) | |
| download | linux-dev-121cdf08cc854bda4892d2c755e32ef424772ac2.tar.xz linux-dev-121cdf08cc854bda4892d2c755e32ef424772ac2.zip | |
nouveau: Attempt to use platform-provided ROM image
Some platforms only provide their PCI ROM via a platform-specific interface.
Fall back to attempting that if all other sources fail.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/bios/base.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/bios/base.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c index e816f06637a7..0e2c1a4f1659 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/base.c @@ -248,6 +248,22 @@ nouveau_bios_shadow_pci(struct nouveau_bios *bios) } } +static void +nouveau_bios_shadow_platform(struct nouveau_bios *bios) +{ + struct pci_dev *pdev = nv_device(bios)->pdev; + size_t size; + + void __iomem *rom = pci_platform_rom(pdev, &size); + if (rom && size) { + bios->data = kmalloc(size, GFP_KERNEL); + if (bios->data) { + memcpy_fromio(bios->data, rom, size); + bios->size = size; + } + } +} + static int nouveau_bios_score(struct nouveau_bios *bios, const bool writeable) { @@ -288,6 +304,7 @@ nouveau_bios_shadow(struct nouveau_bios *bios) { "PROM", nouveau_bios_shadow_prom, false, 0, 0, NULL }, { "ACPI", nouveau_bios_shadow_acpi, true, 0, 0, NULL }, { "PCIROM", nouveau_bios_shadow_pci, true, 0, 0, NULL }, + { "PLATFORM", nouveau_bios_shadow_platform, true, 0, 0, NULL }, {} }; struct methods *mthd, *best; |